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(No Model.)

J. R. J HAMI LTON. SURGICAL iNSTRUMENT HOLDER.

Patented Nov. 15, 1887.

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UNITED STATES PATENT OFFI E.

JONATHAN R. HAMILTON, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR OF ONE-HALF TOLYMAN R. PALMER, OF SAME PLACE.

SURGICAL-INSTRUMENT HOLDER.

SPECIFICATION forming part of Letters Patent No. 373,362, dated November15, 1887.

Application filed April '28, 1887. Serial No. 236,423.

.To all whom it may concern:

Be it known that I, JONATHAN It. HAMIL- TON, a citizen of the UnitedStates, residing at Minneapolis, in the county of Hennepin and State ofMinnesota, have invented certain new and useful Improvements inInstrument-.

Holders, of which the following is a specification.

My invention relates to devices for holding surgical and likeinstruments in position while in use.

The primary object of the invention is the production of a holder forrectal speculums which will obviate the difficulty usually experiencedin maintaining the instrument in the desired position during use; andthe invention consists, generally, in an upright stem attached to anoperating-table by a clamp, and vertically as well as axiallyadjustable, and supporting an adjustable lateral arm which hasahinge-joint, and is provided with aswiveled clamp on its end for holdingthe instrument.

The invention is illustrated in the accompanying drawings, in which- VFigure 1 shows aside elevation ofthe holder attached to a table andsupportinga specu lum by clamping its flange. Fig. 2 is a top view ofthe extreme portion of the holder-arm and its clamp and of a portion ofa speculum held by the clamp. Fig. 3 is a longitudinal section of theend of the arm, showing the swivel-joint of the clamp, and showing alsothe parts of thejointin detail. Fig. 4 is a detached view of the head ofthe stem, showing the mode of supporting'and fastening the lateral arm.

A in the drawings designates a stem, which is secured in uprightposition to a table-top,

B, by means of the clamp-body O and its screw 0, operating in one of thearms 0 of the clamp.

Around hole extendinglongitudinally through the clamp-body receives thestem A, which is also round, and therefore capable of being turned orslid to adjust it; and a set-screw, d, is made to hold the stem fromslipping or turnmg.

(No model.)

On the end of the stem is a split head, a,

havin a circular o enin a to receive the A binding-screw, a is used toOn the end of the arm e is a sleeve, h, ex-

tending beyond the arm. Into the projecting portion of the sleeve isinserted the head of the clamp stock t, which has a circular groove, j,and a pin, 70, is inserted into the groove through a pin-hole, l, in thesleeve, and a collar, m, on the stock t abuts the end of the sleeve. Thejoint is thus made firm, while axial movement is permitted theclamp-stock.

The clamp N is composed of the jaw 12, formed on the end of the stock t,and the jaw a, hinged to the stock, and a clamping'screw, 0, insertedthrough an oblongs lot in thehinged jaw and engaging in a threaded holein the fixed jaw.

prepresents a portion of a speculum-body held by its flange in the jawsof the clamp.

It will be obvious from the foregoing description thatthe devicchavingbeen attached to a table, as described, its holding-clamp N can readilybe moved to any point within the range of its movement and made to holdan instrument in fixed position at the place of ad justment by thetightening of the several screws, as described.

Having fully described my invention, what I claim, and desire to secureby Letters Patent, 1s

1. A holder for instruments, comprising a main stem, a clamp foradjustably attaching the same to a fixed object, alongitudinallyadjustable arm supported on said stem, a joint in saidarm, a binding-screw therefor, and

a swiveled instrulnent-holding clamp carried arm, a sciow for tighteningthe same, and a on the end of said arm, substantially as set clamp onthe end of said arm adapted to hold forth. v an instrument,substantially as set forth.

2. In a holder for the purpose set forth, an JONATHAN R. HAMILTON. 5adjustable upright stem, a longitudinally Witnesses:

movable arm supported thereon, a screw for LYMAN R. PALMER, holding thesame in adjustment, ajointin said I P. H. GUNCKEL.

